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*
* Filename: w83977af_ir.h
* Version:
* Description:
* Status: Experimental.
* Author: Paul VanderSpek
* Created at: Thu Nov 19 13:55:34 1998
* Modified at: Tue Jan 11 13:08:19 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* Neither Dag Brattli nor University of Tromsø admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
********************************************************************/
#ifndef W83977AF_IR_H
#define W83977AF_IR_H
#include <asm/io.h>
#include <linux/types.h>
/* Flags for configuration register CRF0 */
#define ENBNKSEL 0x01
#define APEDCRC 0x02
#define TXW4C 0x04
#define RXW4C 0x08
/* Bank 0 */
#define RBR 0x00 /* Receiver buffer register */
#define TBR 0x00 /* Transmitter buffer register */
#define ICR 0x01 /* Interrupt configuration register */
#define ICR_ERBRI 0x01 /* Receiver buffer register interrupt */
#define ICR_ETBREI 0x02 /* Transeiver empty interrupt */
#define ICR_EUSRI 0x04//* IR status interrupt */
#define ICR_EHSRI 0x04
#define ICR_ETXURI 0x04 /* Tx underrun */
#define ICR_EDMAI 0x10 /* DMA interrupt */
#define ICR_ETXTHI 0x20 /* Transmitter threshold interrupt */
#define ICR_EFSFI 0x40 /* Frame status FIFO interrupt */
#define ICR_ETMRI 0x80 /* Timer interrupt */
#define UFR 0x02 /* FIFO control register */
#define UFR_EN_FIFO 0x01 /* Enable FIFO's */
#define UFR_RXF_RST 0x02 /* Reset Rx FIFO */
#define UFR_TXF_RST 0x04 /* Reset Tx FIFO */
#define UFR_RXTL 0x80 /* Rx FIFO threshold (set to 16) */
#define UFR_TXTL 0x20 /* Tx FIFO threshold (set to 17) */
#define ISR 0x02 /* Interrupt status register */
#define ISR_RXTH_I 0x01 /* Receive threshold interrupt */
#define ISR_TXEMP_I 0x02 /* Transmitter empty interrupt */
#define ISR_FEND_I 0x04
#define ISR_DMA_I 0x10
#define ISR_TXTH_I 0x20 /* Transmitter threshold interrupt */
#define ISR_FSF_I 0x40
#define ISR_TMR_I 0x80 /* Timer interrupt */
#define UCR 0x03 /* Uart control register */
#define UCR_DLS8 0x03 /* 8N1 */
#define SSR 0x03 /* Sets select register */
#define SET0 UCR_DLS8 /* Make sure we keep 8N1 */
#define SET1 (0x80|UCR_DLS8) /* Make sure we keep 8N1 */
#define SET2 0xE0
#define SET3 0xE4
#define SET4 0xE8
#define SET5 0xEC
#define SET6 0xF0
#define SET7 0xF4
#define HCR 0x04
#define HCR_MODE_MASK ~(0xD0)
#define HCR_SIR 0x60
#define HCR_MIR_576 0x20
#define HCR_MIR_1152 0x80
#define HCR_FIR 0xA0
#define HCR_EN_DMA 0x04
#define HCR_EN_IRQ 0x08
#define HCR_TX_WT 0x08
#define USR 0x05 /* IR status register */
#define USR_RDR 0x01 /* Receive data ready */
#define USR_TSRE 0x40 /* Transmitter empty? */
#define AUDR 0x07
#define AUDR_SFEND 0x08 /* Set a frame end */
#define AUDR_RXBSY 0x20 /* Rx busy */
#define AUDR_UNDR 0x40 /* Transeiver underrun */
/* Set 2 */
#define ABLL 0x00 /* Advanced baud rate divisor latch (low byte) */
#define ABHL 0x01 /* Advanced baud rate divisor latch (high byte) */
#define ADCR1 0x02
#define ADCR1_ADV_SL 0x01
#define ADCR1_D_CHSW 0x08 /* the specs are wrong. its bit 3, not 4 */
#define ADCR1_DMA_F 0x02
#define ADCR2 0x04
#define ADCR2_TXFS32 0x01
#define ADCR2_RXFS32 0x04
#define RXFDTH 0x07
/* Set 3 */
#define AUID 0x00
/* Set 4 */
#define TMRL 0x00 /* Timer value register (low byte) */
#define TMRH 0x01 /* Timer value register (high byte) */
#define IR_MSL 0x02 /* Infrared mode select */
#define IR_MSL_EN_TMR 0x01 /* Enable timer */
#define TFRLL 0x04 /* Transmitter frame length (low byte) */
#define TFRLH 0x05 /* Transmitter frame length (high byte) */
#define RFRLL 0x06 /* Receiver frame length (low byte) */
#define RFRLH 0x07 /* Receiver frame length (high byte) */
/* Set 5 */
#define FS_FO 0x05 /* Frame status FIFO */
#define FS_FO_FSFDR 0x80 /* Frame status FIFO data ready */
#define FS_FO_LST_FR 0x40 /* Frame lost */
#define FS_FO_MX_LEX 0x10 /* Max frame len exceeded */
#define FS_FO_PHY_ERR 0x08 /* Physical layer error */
#define FS_FO_CRC_ERR 0x04
#define FS_FO_RX_OV 0x02 /* Receive overrun */
#define FS_FO_FSF_OV 0x01 /* Frame status FIFO overrun */
#define FS_FO_ERR_MSK 0x5f /* Error mask */
#define RFLFL 0x06
#define RFLFH 0x07
/* Set 6 */
#define IR_CFG2 0x00
#define IR_CFG2_DIS_CRC 0x02
/* Set 7 */
#define IRM_CR 0x07 /* Infrared module control register */
#define IRM_CR_IRX_MSL 0x40
#define IRM_CR_AF_MNT 0x80 /* Automatic format */
/* For storing entries in the status FIFO */
struct st_fifo_entry {
int status;
int len;
};
struct st_fifo {
struct st_fifo_entry entries[10];
int head;
int tail;
int len;
};
/* Private data for each instance */
struct w83977af_ir {
struct st_fifo st_fifo;
int tx_buff_offsets[10]; /* Offsets between frames in tx_buff */
int tx_len; /* Number of frames in tx_buff */
struct net_device *netdev; /* Yes! we are some kind of netdevice */
struct irlap_cb *irlap; /* The link layer we are binded to */
struct qos_info qos; /* QoS capabilities for this device */
chipio_t io; /* IrDA controller information */
iobuff_t tx_buff; /* Transmit buffer */
iobuff_t rx_buff; /* Receive buffer */
dma_addr_t tx_buff_dma;
dma_addr_t rx_buff_dma;
/* Note : currently locking is *very* incomplete, but this
* will get you started. Check in nsc-ircc.c for a proper
* locking strategy. - Jean II */
spinlock_t lock; /* For serializing operations */
__u32 new_speed;
};
static inline void switch_bank( int iobase, int set)
{
outb(set, iobase+SSR);
}
#endif
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